ImagickDraw::setGravity

(PECL imagick 2, PECL imagick 3)

ImagickDraw::setGravitySets the text placement gravity

说明

public ImagickDraw::setGravity(int $gravity): bool
警告

本函数还未编写文档,仅有参数列表。

Sets the text placement gravity to use when annotating with text.

参数

gravity

One of the GRAVITY constant (imagick::GRAVITY_*).

返回值

没有返回值。

范例

示例 #1 ImagickDraw::setGravity() example

<?php
function setGravity($fillColor$strokeColor$backgroundColor) {

    
$draw = new \ImagickDraw();
    
$draw->setStrokeColor($strokeColor);
    
$draw->setFillColor($fillColor);
    
$draw->setStrokeWidth(1);
    
$draw->setFontSize(24);

    
$gravitySettings = array(
        \
Imagick::GRAVITY_NORTHWEST => 'NorthWest',
        \
Imagick::GRAVITY_NORTH => 'North',
        \
Imagick::GRAVITY_NORTHEAST => 'NorthEast',
        \
Imagick::GRAVITY_WEST => 'West',
        \
Imagick::GRAVITY_CENTER => 'Centre',
        \
Imagick::GRAVITY_SOUTHWEST => 'SouthWest',
        \
Imagick::GRAVITY_SOUTH => 'South',
        \
Imagick::GRAVITY_SOUTHEAST => 'SouthEast',
        \
Imagick::GRAVITY_EAST => 'East'
    
);

    
$draw->setFont("../fonts/Arial.ttf");

    foreach (
$gravitySettings as $type => $description) {
        
$draw->setGravity($type);
        
$draw->annotation(5050'"' $description '"');
    }

    
$imagick = new \Imagick();
    
$imagick->newImage(500500$backgroundColor);
    
$imagick->setImageFormat("png");
    
$imagick->drawImage($draw);

    
header("Content-Type: image/png");
    echo 
$imagick->getImageBlob();
}

?>